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(No'Model.)

H. P. STOEOKER.

GALVANIG BATTERY.

No. 449,299. Patented Ma1n31l89l.

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WITNESSES: #d/JQ@ w wf UNITED STATES PATENT EEICE.

HENRY I. STOECKER, OF NET YORK, N. Y.

GALVAN IC BATTERY.

SPECIFICATION forming part of Letters Patent No. 449,299, dated March 31, 1891..

Application tiled December 4, 1890. Serial No. 373,582. (No model.)

To all whom it may concern:

Be it known that I, HENRY I. STOECKER,a citizen of the 'United States, and a resident of New York, in the county and State of New York, have invented certain new and useful Improvements in Galvanic Batteries, of which the following is a specification.

My invention has reference to improvements in galvanic batteries; and it has for its object to provide at a low cost a battery possessing increased power and longer duration than the batteries now in use.

lVith this object in view inyinvention consists, essentially, in a cathode formed ot a series of carbon rods arranged in contact one with the other, in combination with an inner carbon rod and an intermediate filling of broken carbon and a depolarizing agent.

Furthermore, my invention consists in certain novel means for securing the wires to the poles, all of which is more fully pointed out in the following specification and claims and illustrated in the accompanying draw ings, in which-- Figure l represents a sectional elevation of a galvanic battery embodying` my invention. Fig. 2 is a vertical section in the plane @t os, Fig. Lt. Fig. 3 is a horizontal section in the plane y y, Fig. l, with the filling removed.

Fig. et is a similar section in the plane 2 z, Fig. 2.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates a jar oi' any suitable construction.

B B are the carbon rods, arranged in a circular series and in contact one with the other, their lower ends resting and contined in acircular groove or socket c, formed in a base C, of wood or other suitable material, placed in the bottom of the jar.

B is the inner carbon, preferably placed in the center of the series with its lower end resting in a socket b in the base C, and its upper end arranged to proj ect above the cover D of the jaw.

In the space intermediate of the rods B B and B is placed a filling E of broken carbon and a suitable depolarizing agent, such as peroxide of manganese, the upper portion of said tillingbeing covered with pitch, as E', or other suitable material.

F is the anode of zinc,which may be made of any convenient form and is placed in the jar exterior to the carbons, the jarbeing filled with any suitable eXciting-tiuid--such, for instance, as a solution of sal-ammoniac- The cathode is held together by suitable rubber bands c in addition to the base C. By this construction of the cathode I obtain a large effective surface, and, furthermore, the carbon filling and the depolarizing agent are not liable to fall out ot' the carbon cylinder.

To secure the respective wires or conductors WV and IV to the poles I make use of a sleeve made ot spirally-wound wire terminating in an eye or hook d, Fig. l. The wire or conductor is clamped between the said sleeve and the pole and is looped or wound about the eye, thereby strongly securing the wire to the pole. To release the wire the sleeve is unscrewed. It is evident that a sleeve provided with an internal screw-thread and au eye would be the equivalent of thisdevice, the spirally-wound wire actually forming a screw-thread. In some cases the eye can be omitted and the wire secured only by the friction of the sleeve upon it.

IVhat I claim as new, and desire to secure by Letters Patent, is

l. In combination with the pole and the wire arranged lengthwise upon the same, a threaded sleeve screwed upon the pole and bearing upon the wire to clamp the same to the pole, substantially as described.

2. In combination with the pole and the wire arranged lengthwise upon the same, a threaded sleeve screwed upon the pole and bearing upon the wire to clamp the same to the pole, said sleeve terminating in an eye about which the wire is looped, substantially as described.

3. A cathode formed ot a series of carbon rods arranged in contact one with the other, and a iilling ot broken carbon and a depolarizing agent, substantially as described.

4. A cathode formed of a series of carbon rods, an inner carbon rod, and an intermediate filling of broken carbon and a depolarizing agent, substantially as described.

In testimony that I claim the foregoing as my invention I have signed my naine, in presence of two witnesses, this 26th day ot' November, 1890.

HENRY I). STOECKER.

Witnesses:

W. BAILEY, A. FABER DU FAUR..

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